Program was good on win7 for some time. I decided to play around with it. I was trying so configuring of skeinforge (comes with the host download along with slic3r) and I also installed Cura. I download pypy (didn't realize it came with Rep-host.) and ran the exe. Went back to repetier's slicer manager and for skeinforge I point the directories to where they had to point to (not that I needed to as the program knows the default locations for the skeinforge that came with it). Decided to go back to slic3r and when I run a job now in Rep-host the extruder does not get turned on. When I turn the extruder on in manual control, it works fine. I'm not seeing anything in the gcode any different than the last times I ran it fine. It's strange. I uninstalled it, made sure to delete the rep-host folder in programs, the slic3r folder in programsx86 and the rep-host folder in c:/users folder.